 /*******************************************************************************
  * Copyright (c) 2003, 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.ui.internal.activities.ws;

 import java.util.Collection ;

 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.ui.activities.IActivityManager;

 /**
  * @since 3.0
  */
 public class ActivityContentProvider implements IStructuredContentProvider {

     /**
      * @since 3.0
      */
     public ActivityContentProvider() {
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.jface.viewers.IContentProvider#dispose()
      */
     public void dispose() {
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
      */
     public Object [] getElements(Object inputElement) {
         Object [] activities = new Object [0];
         if (inputElement instanceof IActivityManager) {
             activities = ((IActivityManager) inputElement)
                     .getDefinedActivityIds().toArray();
         } else if (inputElement instanceof Collection ) {
             activities = ((Collection ) inputElement).toArray();
         }
         return activities;
     }

     /*
      * (non-Javadoc)
      *
      * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
      * java.lang.Object, java.lang.Object)
      */
     public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
     }
 }

